Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cbcb398e4b4a86…

MALICIOUS

PDF

74.5 KB Created: 2022-04-14 23:17:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 1a30d34f0a84c4139b4321315597eab2 SHA-1: 31507aaa229bcd4a0d910445f22198e2b5fc3f01 SHA-256: c0cbcb398e4b4a86b677353765201f41cb4303d488d358c3401805f402626418
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://piwaxiru.weebly.com/uploads/1/3/4/8/134882920/5375458.pdf In PDF document text
    • https://zepudelewow.weebly.com/uploads/1/3/2/6/132682561/1971227.pdfIn PDF document text
    • https://vuxizufekek.weebly.com/uploads/1/3/4/8/134864169/cc3c6fcb86187f5.pdfIn PDF document text
    • https://vos-web.nl/userfiles/file/81207804208.pdfIn PDF document text
    • http://www.agencesramos.com/ckfinder/userfiles/files/64288829541.pdfIn PDF document text
    • https://sawuvuvexefiz.weebly.com/uploads/1/3/5/9/135964560/5440592.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1622421b79f32e---wajijugiwasabadameko.pdfIn PDF document text
    • https://savitravel.ro/ckfinder/userfiles/files/76405226150.pdfIn PDF document text
    • https://lesilejot.weebly.com/uploads/1/3/5/3/135314863/zafoged_burovuzavip_wafadel_wiwabuw.pdfIn PDF document text
    • https://rocksoliddesigns.biz/userfiles/file/sewubibev.pdfIn PDF document text
    • https://deralufarojep.weebly.com/uploads/1/4/1/2/141281766/4989717.pdfIn PDF document text
    • https://rukutatonaneto.weebly.com/uploads/1/3/4/0/134012616/4e38e25755.pdfIn PDF document text
    • http://anexbd.com/assets/ckeditor/kcfinder/upload/files/piwepinuzeposezix.pdfIn PDF document text
    • https://gawokuvaz.weebly.com/uploads/1/3/4/6/134656265/3358571.pdfIn PDF document text
    • https://angkajp88.com/contents/files/fenewakafaluzir.pdfIn PDF document text
    • https://www.gpaci.org.br/cms/ckfinder/userfiles/files/95042734089.pdfIn PDF document text
    • https://hkbca.org/UploadFiles/file/20220401121932197.pdfIn PDF document text
    • https://duboxudufafuboj.weebly.com/uploads/1/3/4/6/134676192/dasuxovugatipag-fogokebal-vekofabemite-bagotosikovofo.pdfIn PDF document text
    • https://zozumaled.weebly.com/uploads/1/3/1/3/131379894/vesomomapuvep-xuvudafadabofod-kuwujozam.pdfIn PDF document text
    • https://kebetesoma.weebly.com/uploads/1/3/2/6/132695457/60f283451de4f2.pdfIn PDF document text
    • https://mytshirtcreator.com/app/webroot/files/file/ronabisawebasidiruvapufad.pdfIn PDF document text
    • https://kujibolivobukib.weebly.com/uploads/1/3/1/1/131163991/1537018.pdfIn PDF document text
    • http://veterinariacomportamentale.it/userfiles/files/9261098558.pdfIn PDF document text
    • https://beroduxeloxop.weebly.com/uploads/1/4/1/2/141286420/4166054.pdfIn PDF document text
    • https://sunuf.co.za/YmrXLWy8?keyword=honda%20fit%20aria%202007%20price%20in%20pakistanPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000bd92.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bd92.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD92 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A4 17172 bytes
SHA-256: 3d53a1e1db20c1103fe8357b5709a022877da86ed5f55d7e5191622be5bce8bb
font_02_sfnt_off000102d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102D3 10940 bytes
SHA-256: 38cca22c63f58b3181b7295c978b20c4420346eaf27519474b9131133f3ca369